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Implantable prosthetic valve stent

a prosthetic valve and implantable technology, applied in the field of implantable devices, can solve the problems of preventing the performance of longitudinal fixation affecting the performance of the valve prosthesis device, and not eliminating the danger of recoiling of the support stent, so as to reduce the number of longitudinal beams

Inactive Publication Date: 2010-06-10
VOINOV VALERIAN +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention is a prosthesis for implantation in body ducts that includes a primary tube and an additional support stent with transverse sinuous circles. The primary tube has thrusting angles of ˜90° and the additional support stent has elements with the same thrusting angles. The primary tube is crimped onto the implantable prosthesis. The additional support stent can have a different number of transverse sinuous circles and longitudinal beams. The invention provides a wider range of clinical applications for the implantable prosthesis."

Problems solved by technology

However, it does not eliminate the danger of recoil of the support stent, which in addition is subjected to significant wear and tear changes under impulses from contracting heart.
Another drawback of the support stent is its cylindrical form, preventing performance of longitudinal fixation of the valve prosthesis device in implantation site.

Method used

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  • Implantable prosthetic valve stent
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Examples

Experimental program
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Embodiment Construction

[0065]FIG. 1 illustrates a general view of an implantable PROSTHESIS according to the U.S. Pat. No. 6,730,118 B2. Pos. 1 marks a metallic support stent, in which β—thrusting angle of elements of transverse sinuous circles. Pos. 2 marks a biological part of the implantable PROSTHESIS. The A arrow shows on a leaflet of the implantable PROSTHESIS. In particular, on one of the tricuspid biological leaflet 2 (it is demonstrated in FIG. 9). The implantable PROSTHESIS is illustrated in an expanded position accordingly to its initial manufacturing, and also with its final expanded position for implantation. The external diameter of the implantable PROSTHESIS equals 23 mm, thrusting angle (β) equals 90°.

[0066]The tube of this very diameter is used to manufacture support stent 1. However upon implantation, the implantable PROSTHESIS can expand from the crimping condition to diameters 19 mm÷25 mm according to its clinical application. Under diameters lesser than 23 mm, the thrusting angle (β) ...

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Abstract

An implantable PROSTHESIS with formed power couch+, including a primary tube as an half finished product in a form of an additional support stent, the additional support stem forms a circular structure upon its expansion that allows to reduce the total mass of the implantable valve device upon keeping of its high dynamics stability and to establish axis-symmetrical shape similar to hyperboloid. The leaflets of a valve device functional part are provided a system of a low-profile guiding spiral relief, under which blood flow imposes additionally a component of a spiral movement.

Description

FIELD of the INVENTION[0001]The present invention relates to implantable devices. In particular, it relates to a valve prosthesis for cardiac implantation or for implantation in other body cannels.BACKGROUND OF THE INVENTION[0002]Many different implantable valve prosthesis devices are known, including those which are used in percutaneous technologies for implantation in body channels. One of such effective technologies for implantation is the system presented in the U.S. Pat. No. 6,730,118 B2 entitled Implantable Prosthetic Valve. Not going into details of this technology and its preparatory stages and structure of a biological part of the tricuspid valve prosthesis device, we should only mention that its basic drawbacks are laying in its power part, i.e. in its metallic structure.[0003]The metallic part of the valve prosthesis device is the support stent in a form of a cylindrical net shell, containing transverse (relative to the cylinder axis) closed sinuous circles, interconnecte...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F2/82
CPCA61F2/2412A61L27/06A61F2/2418
Inventor VOINOV, VALERIANBOLDYREV, ROMULVOINOV, VALENTIN
Owner VOINOV VALERIAN